Research on Cross Polarization Discrimination (XPD) for Base Station Antennas

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Prof. Yu LUO
the School of Microelectronics
Tianjin University


Cross Polarization Discrimination is a key factor to evaluate the performance of base station antennas. In this talk, two novel methods to design ±45° dual-polarized base-station antennas with enhanced cross polarization ratio (XPD) are presented. The first method to improve XPD is by addition of four horizontal parasitic elements around a simple ±45° dual-polarized base-station antenna. The second method is by addition of four vertical parasitic elements between a simple ±45° dual-polarized base-station antenna and a reflective ground. Two ±45° dual-polarized base-station antennas were designed, designed, fabricated and measured to verify the two proposed methods. In addition, the proposed methods can also be employed to wide axial ratio beamwidth circularly polarized antenna design.


Prof. Yu LUO received his B.S. and the Ph.D. degree in electronic engineering from South China University of Technology, Guangzhou, Guangdong, China, in 2010 and 2015, respectively. He worked as a research assistant at the University of Macau, Macau SAR, during Apr. 2014-Sep. 2014, worked as a post-doctoral fellow in the University of Victoria, BC, Canada during Sep. 2015-Aug. 2016 and worked as a research fellow at the National University of Singapore during Sep. 2016-Sep. 2018. Currently, he works as a full professor in the School of Microelectronics, Tianjin University. His research interest focuses on antennas in new generation mobile communications and synthetic aperture radar (SAR) systems, such as SIW antennas, base-station antennas, circularly polarized antennas, MIMO antennas, and Yagi-Uda antennas. He is a Member of IEEE, reviewer of many International Journals, and member of TPC of many International conferences.

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